有没有老师能看懂这个单片机程序

本帖最后由 junyu99 于 2018-5-2 01:38 编辑

/*----------------------------

初始化ADC

---------------------------- */

void InitADC()

{

P1ASF=0x0f; //设置P1.0 /P1.1/P1.2/P1.3端口作为模拟输入

ADC_RES = 0; //清除结果寄存器

ADC_CONTR = ADC_POWER | ADC_SPEEDHH | ADC_START | 0;

_delay_ms(1); //ADC上电并延时

}

/*******************定时器0*******************/

void Inittimer0()

{

TMOD = 0x01;

TH0 = 0x0FC;

TL0 = 0x18;

EA = 1;

ET0 = 1;

TR0 = 1;

}

uchar PianLi(uchar a) //求|a-127|+1，离中值

{

if(a>127)return (a-127); //1到128

else return (128-a);

}

void chuli(uchar x,uchar y,uchar *c,uchar *d,uchar *e) //

{

uchar pianlix,pianliy;

pianlix=PianLi(x);

pianliy=PianLi(y);

if(pianlix>20||pianliy>20)

{

if(100*pianliy<=41*pianlix)*e=1; // 0到22.5度

else if(100*pianliy>=241*pianlix)*e=3;// 67.5度到90度

else *e=2;// 22.5度到67.5度

if(x>127)*c=1;

else *c=2;

if(y>127)*d=1;

else *d=2;

}

else *c=*d=0;

}

uchar dx1,dx2,dy1,dy2; //1正2负0中

uchar xy1,xy2; //1:0到22.5度 2:22.5度到67.5度 3：67.5度到90度

void main (void)

{

//uchar zhix1,zhix2,zhiy1,zhiy2;

P1M0=0x00;

P1M1=0xff;//P2M0=255;P2M1=0;P3M0=255;P3M1=0;

InitADC(); //初始化ADC

InitTimer0();

while (1) //主循环

{

if(dx1&&dy1) //左摇杆 while(dx1==1&&dy1==1&&xy1=1);

{

if(dx1==1&&dy1==1&&xy1==1){P31=P30=0;_delay_ms(500);P31=P30=1;}

if(dx1==1&&dy1==1&&xy1==2){P31=P30=0;P32=P33=0;_delay_ms(500);P31=P30=1;P32=P33=1;}//

if(dx1==1&&dy1==1&&xy1==3){P32=P33=0;_delay_ms(500);P32=P33=1;}

if(dx1==1&&dy1==2&&xy1==1){P31=P30=0;_delay_ms(500);P31=P30=1;}

if(dx1==1&&dy1==2&&xy1==2){P34=P35=0;P31=P30=0;_delay_ms(500);P34=P35=1;P31=P30=0;}//

if(dx1==1&&dy1==2&&xy1==3){P34=P35=0;_delay_ms(500);P34=P35=1;}

if(dx1==2&&dy1==1&&xy1==1){P36=P37=0;_delay_ms(500);P36=P37=1;}

if(dx1==2&&dy1==1&&xy1==2){P32=P33=0;P36=P37=0;_delay_ms(500);P32=P33=1;P36=P37=1;}//

if(dx1==2&&dy1==1&&xy1==3){P32=P33=0;_delay_ms(500);P32=P33=1;}

if(dx1==2&&dy1==2&&xy1==1){P36=P37=0;_delay_ms(500);P36=P37=1;}

if(dx1==2&&dy1==2&&xy1==2){P34=P35=0;P36=P37=0;_delay_ms(500);P34=P35=1;P36=P37=1;}//

if(dx1==2&&dy1==2&&xy1==3){P34=P35=0;_delay_ms(500);P34=P35=1;}

}

if(dx2&&dy2) //摇杆 while(dx1==1&&dy1==1&&xy1=1);

{

if(dx2==1&&dy2==1&&xy2==1){P21=P20=0;_delay_ms(500);P21=P20=1;}

if(dx2==1&&dy2==1&&xy2==2){P21=P20=0;P22=P23=0;_delay_ms(500);P21=P20=1;P22=P23=1;}//

if(dx2==1&&dy2==1&&xy2==3){P22=P23=0;_delay_ms(500);P22=P23=1;}

if(dx2==1&&dy2==2&&xy2==1){P21=P20=0;_delay_ms(500);P21=P20=1;}

if(dx2==1&&dy2==2&&xy2==2){P24=P25=0;P21=P20=0;_delay_ms(500);P24=P25=1;P21=P20=0;}//

if(dx2==1&&dy2==2&&xy2==3){P24=P25=0;_delay_ms(500);P24=P25=1;}

if(dx2==2&&dy2==1&&xy2==1){P26=P27=0;_delay_ms(500);P26=P27=1;}

if(dx2==2&&dy2==1&&xy2==2){P22=P23=0;P26=P27=0;_delay_ms(500);P22=P23=1;P26=P27=1;}//

if(dx2==2&&dy2==1&&xy2==3){P22=P23=0;_delay_ms(500);P22=P23=1;}

if(dx2==2&&dy2==2&&xy2==1){P26=P27=0;_delay_ms(500);P26=P27=1;}

if(dx2==2&&dy2==2&&xy2==2){P24=P25=0;P26=P27=0;_delay_ms(500);P24=P25=1;P26=P27=1;}//

if(dx2==2&&dy2==2&&xy2==3){P24=P25=0;_delay_ms(500);P24=P25=1;}

}

}

}

void Timer0Interrupt() interrupt 1

{

// TH0 =(65535-1000)/256;

// TL0 =(65535-1000)%256;

chuli(255-zhADC(2),zhADC(3),&dx1,&dy1,&xy1);

chuli(255-zhADC(1),zhADC(0),&dx2,&dy2,&xy2);

}